JsonArray::remove() and JsonObject::remove() now release the memory of strings

src/ArduinoJson/Memory/StringSlot.hpp

@@ -0,0 +1,20 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2018
+// MIT License
+
+#pragma once
+
+#include <stddef.h>  // for size_t
+#include "../Configuration.hpp"
+
+#define JSON_STRING_SIZE(SIZE) \
+  (sizeof(ARDUINOJSON_NAMESPACE::StringSlot) + (SIZE))
+
+namespace ARDUINOJSON_NAMESPACE {
+
+struct StringSlot {
+  char *value;
+  size_t size;
+  struct StringSlot *next;
+};
+}  // namespace ARDUINOJSON_NAMESPACE